I've never seen the Halloween movies, but I've heard the theme plenty. I learned most of it, and played at a friends house. They asked me to stop because it was scaring them! Then I learned the rest. It ain't too fancy, but it's ever so cool!

Sounds exactly like the music from the original movie. I am a complete beginner and picked this up in a few hours. It's so spooky and haunting and sounds great on an electric keyboard where you can use special effects in the bass part.